Protection depends on the scheme's scope
Self exclusion arrangements differ across Canadian provinces and operators. A restriction on one platform should not be assumed to cover every gambling account nationally.
That uneven coverage is a reason to strengthen protection, not search for casinos outside it. This page does not recommend ways around an exclusion.
An uncovered brand is not a solution
Ask the relevant provincial service or operator what products and brands the exclusion covers. Add bank controls and device blocking where gaps leave unwanted access.
If another casino is sending marketing during an exclusion, unsubscribe and document the contact. Support can help extend the pause without opening a replacement account.